Speaker



FIG. 1 is a front perspective view of a speaker showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a left side elevational view thereof, the right side elevational view being a mirror image;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines showing the knobs, feet, vents, speaker mesh, and ports in FIGS. 1-6 are for illustrative purpose only and form no part of the claimed design. 

The ornamental design for a speaker, as shown and described. 